<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图 -->
        <el-card>
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入搜索的内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userList" style="width: 100%" border stripe>
                <el-table-column type="index"> </el-table-column>
                <el-table-column prop="username" label="姓名"> </el-table-column>
                <el-table-column prop="email" label="邮箱"> </el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"> </el-table-column>
                <el-table-column label="状态">
                    <!-- 作用域插槽 会覆盖prop -->
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini" circle
                            @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" circle
                            @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 分配角色按钮 添加消息提示 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" circle
                                @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户的对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
            <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号 " prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
            <!-- 内容主体区域 -->
            <el-form :model="editForm" :rules="addFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号 " prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色的对话框 -->
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
            <!-- 内容主体区域 -->
            <div>
                <p>当前用户：{{ userInfo.username }}</p>
                <p>当前角色：{{ userInfo.role_name }}</p>
                <p>
                    分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInf">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data() {
        // 验证邮箱的规则
        // var checkEmail = (rule, value, callback) => {
        //   // 验证邮箱的正则表达式
        //   const regEmail = /^([a-zA-Z0-9_-])+@(a-zA-Z0-9_-])+(\.a-zA-Z0-9_-)+/
        //   if (regEmail.test(value)) {
        //     // 合法的邮箱
        //     return callback()
        //   }
        //   callback(new Error('请输入合法的邮箱'))
        // }

        // 验证手机号的规则
        var checkMoblie = (rule, value, callback) => {
            // 验证手机号的正则表达式
            const regMoblie = /^(13[0-9]|14[5|7]|15[0|1|2|3|4|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$/
            if (regMoblie.test(value)) {
                return callback()
            }
            callback(new Error('请输入合法的手机号'))
        }
        return {
            // 获取用户列表的参数对象
            queryInfo: {
                query: '',
                // 当前页数
                pagenum: 1,
                // 当前每页显示多少条数据
                pagesize: 2
            },
            userList: [],
            total: 0,
            // 控制对话框显示与隐藏
            addDialogVisible: false,
            // 添加用户的表单数据
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 添加表单的验证规则对象
            addFormRules: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    {
                        min: 3,
                        max: 10,
                        message: '用户名的长度在3-10个字符之间',
                        trigger: 'blur'
                    }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    {
                        min: 6,
                        max: 15,
                        message: '密码的长度在6-15个字符之间',
                        trigger: 'blur'
                    }
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    // { validator: checkEmail, trigger: 'blur' },
                    {
                        type: 'email',
                        message: '请输入正确的邮箱地址',
                        trigger: ['blur', 'change']
                    }
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    { validator: checkMoblie, trigger: 'blur' }
                    // { type: 'mobliephone', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] }
                ]
            },
            // 控制修改用户对话框的显示与隐藏
            editDialogVisible: false,
            // 查询到的用户的信息对象
            editForm: {},
            // 修改表单的验证规则对象
            // editFormRules,
            // 控制分配角色对话框显示与隐藏
            setRoleDialogVisible: false,
            // 需要被分配角色的用户信息
            userInfo: {},
            // 所有角色的数据列表
            rolesList: [],
            // 已选中的角色id值
            selectedRoleId: ''
        }
    },
    created() {
        this.getUserList()
    },
    methods: {
        async getUserList() {
            const { data: result } = await this.$http.get('users', {
                params: this.queryInfo
            })
            if (result.meta.status !== 200) {
                return this.$message.error('获取用户列表失败！')
            }
            this.userList = result.data.users
            this.total = result.data.total
            // console.log(result)
        },
        // 监听 pagesize 改变的事件
        handleSizeChange(newSize) {
            // console.log(newSize)
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        // 监听页码值改变的事件
        handleCurrentChange(newPage) {
            // console.log(newPage)
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        // 监听switch开关状态的改变
        async userStateChange(userinfo) {
            // console.log(userinfo.mg_state)
            // 发送请求进行状态修改
            const { data: result } = await this.$http.put(
                `users/${userinfo.id}/state/${userinfo.mg_state}`
            )
            if (result.meta.status !== 200) {
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error('更新用户状态失败')
            }
            this.$message.success('更新用户状态成功')
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed() {
            this.$refs.addFormRef.resetFields()
        },
        // 点击按钮，添加新用户
        addUser() {
            this.$refs.addFormRef.validate(async valid => {
                // console.log(valid)
                if (!valid) return
                // 发起添加用户的网路请求
                const { data: result } = await this.$http.post('users', this.addForm)
                if (result.meta.status !== 201) {
                    this.$message.error('添加用户失败！')
                }
                this.$message.success('添加用户成功！')
                // 隐藏添加用户的对话框
                this.addDialogVisible = false
                // 重新获取列表数据
                this.getUserList()
            })
        },
        // 展示编辑用户的对话框
        async showEditDialog(id) {
            this.editDialogVisible = true
            const { data: result } = await this.$http.get('users/' + id)
            if (result.meta.status !== 200) {
                return this.$message('查询用户信息失败！')
            }
            this.editForm = result.data
        },
        // 监听修改用户对话框的关闭事件
        editDialogClosed() {
            this.$refs.editFormRef.resetFields()
        },
        // 修改用户信息，并提交
        editUserInfo() {
            this.$refs.editFormRef.validate(async valid => {
                // console.log(valid)
                if (!valid) return
                // 发起修改用户信息的数据请求
                const { data: result } = await this.$http.put(
                    'users/' + this.editForm.id,
                    { email: this.editForm.email, mobile: this.editForm.mobile }
                )
                if (result.meta.status !== 200) {
                    return this.$message.error('更新用户失败')
                }
                // 关闭对话框
                this.editDialogVisible = false
                // 重新获取用户列表
                this.getUserList()
                // 提示修改成功
                this.$message.success('更新用户信息成功')
            })
        },
        // 根据id删除对应的用户信息
        async removeUserById(id) {
            // 弹框提示用户是否删除数据
            const confirmResult = await this.$confirm(
                '此操作将永久删除该用户，是否继续？',
                '提示',
                {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }
            ).catch(error => error)
            // console.log(confirmResult) // 确定：'confirm' 取消：报错:cancel catch之后就是'canel'
            if (confirmResult !== 'confirm') {
                return this.$message.info('已经取消删除')
            }
            // console.log('确认了删除')
            const { data: result } = await this.$http.delete('users/' + id)
            if (result.meta.status !== 200) {
                return this.$message.error('删除用户失败')
            }
            this.$message.success('删除用户成功')
            this.getUserList()
        },
        // 展示分配角色的对话框
        async setRole(userInfo) {
            this.userInfo = userInfo
            // 在展示对话框之前获取所有角色的列表
            const { data: result } = await this.$http.get('roles')
            if (result.meta.status !== 200) return this.$message.error('获取角色列表失败！')
            this.$message.success('获取角色列表成功！')
            this.rolesList = result.data
            this.setRoleDialogVisible = true
        },
        // 点击按钮分配角色
        async saveRoleInf() {
            if (!this.selectedRoleId) {
                return this.$message.error('请选择一个角色！')
            }
            const { data: result } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
            if (result.meta.status !== 200) {
                return this.$message.error('更新角色失败！')
            }
            this.$message.success('更新角色成功！')
            // 刷新当前角色列表
            this.getUserList()
            // 隐藏当前分配角色对话框
            this.setRoleDialogVisible = false
        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClosed() {
            this.selectedRoleId = ''
            this.userInfo = {}
        }
    }
}
</script>

<style scoped>
</style>
